JPH0650799Y2 - Fuel delivery device to spent nuclear fuel shearing device - Google Patents
Fuel delivery device to spent nuclear fuel shearing deviceInfo
- Publication number
- JPH0650799Y2 JPH0650799Y2 JP8051788U JP8051788U JPH0650799Y2 JP H0650799 Y2 JPH0650799 Y2 JP H0650799Y2 JP 8051788 U JP8051788 U JP 8051788U JP 8051788 U JP8051788 U JP 8051788U JP H0650799 Y2 JPH0650799 Y2 JP H0650799Y2
- Authority
- JP
- Japan
- Prior art keywords
- spent nuclear
- nuclear fuel
- pusher
- fuel
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は使用済核燃料を再処理する際に使用する使用済
核燃料剪断装置への燃料送り出し装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a fuel delivery device to a spent nuclear fuel shearing device used when reprocessing spent nuclear fuel.
（従来の技術） 従来の使用済核燃料剪断装置への燃料送り出し装置のう
ち，チエーン送り端面装荷方式の燃料送り出し装置を第
３図乃至第６図に示し，また側面装荷方式の燃料送り出
し装置を第7,8図に示した。(Prior Art) Of the conventional fuel delivery devices for spent nuclear fuel shearing equipment, a chain delivery end face loading type fuel delivery device is shown in FIGS. 3 to 6, and a side loading type fuel delivery device is shown in FIG. Shown in Figures 7 and 8.
まずチエーン送り端面装荷方式の燃料送り出し装置を第
３図乃至第６図により説明すると，（01）が使用済核燃
料集合体（以下使用済燃料と称する），（02）が回転可
能なチエーンマガジン，（06）が同チエーンマガジン
（02）内に設けた無端状チエーン，（05）が同無端状チ
エーン（06）に取付けたプツシヤ，（03）が同チエーン
マガジン（02）に設けた通路部材，（04）が筒型マガジ
ンで，チエーンマガジン（02）を第３図の位置から第５
図の位置に回転し，通路部材（03）を筒型マガジン（0
4）に連通させて，使用済核燃料（01）を通路部材（0
3）を経て筒型マガジン（04）へ装荷し，次いでチエー
ンマガジン（02）を第５図の位置から第３図の位置に回
転し，無端状チエーン（06）を駆動して，プツシヤ（0
5）を第６図の矢印方向に前進させ，使用済核燃料（0
1）を右方へ一定寸法ずつ前進させて，右方に位置する
使用済核燃料剪断装置（図示せず）へ送り出すようにな
っている。First, a chain feed end face loading type fuel delivery device will be described with reference to FIGS. 3 to 6. (01) is a spent nuclear fuel assembly (hereinafter referred to as spent fuel), (02) is a rotatable chain magazine, (06) is an endless chain provided in the chain magazine (02), (05) is a pusher attached to the endless chain (06), (03) is a passage member provided in the chain magazine (02), (04) is a cylindrical magazine, and the chain magazine (02) is located from the position shown in FIG.
Rotate to the position shown in the figure and insert the passage member (03) into the cylindrical magazine (0
4) The spent nuclear fuel (01) is communicated with the passage member (0).
3) via a cylindrical magazine (04), then rotate the chain magazine (02) from the position shown in Fig. 5 to the position shown in Fig. 3 to drive the endless chain (06) to move the pusher (0
5) in the direction of the arrow in Fig. 6, and spent fuel (0
1) is advanced to the right by a certain size and sent to the spent nuclear fuel shearing device (not shown) located on the right.
次に側面装荷方式の燃料送り出し装置を第7,8図により
説明すると，（01）が使用済核燃料，（001）が送りね
じ軸，（012）が同送りねじ軸（010）に螺合したナッ
ト，（013）が同ナツト（012）に取付けたプツシヤ，
（014）が筒型マガジンで，使用済核燃料（01）を矢印
方向に押して，筒型マガジン（014）の側方から筒型マ
ガジン（014）内へ装荷し，次いで送りねじ軸（010）を
回転して，ナツト（012）及びプツシヤ（013）を矢印方
向に前進させ，使用済核燃料（01）を第８図の右方へ一
定寸法ずつ前進させて，右方に位置する使用済核燃料剪
断装置（図示せず）へ送り出すようになつている。Next, the side-loading type fuel delivery device will be explained with reference to Figs. 7 and 8. (01) is a spent nuclear fuel, (001) is a feed screw shaft, and (012) is a screw screw shaft (010). The nut, (013) is the pusher attached to the nut (012),
(014) is a cylindrical magazine, and the spent nuclear fuel (01) is pushed in the direction of the arrow to load it from the side of the cylindrical magazine (014) into the cylindrical magazine (014), and then the feed screw shaft (010). Rotating, the nut (012) and pusher (013) are advanced in the direction of the arrow, and the spent nuclear fuel (01) is advanced to the right in FIG. It is designed to be sent to a device (not shown).
（考案が解決しようとする課題） 前記第３図乃至第６図に示すチエーン送り端面装荷方式
の燃料送り出し装置では，使用済核燃料（01）を送り出
すのが多関節構造で機械的にガタのあるチエーン（06）
なので，送り出し精度が悪くて，使用済核燃料剪断装置
で一定寸法に剪断することができず，剪断片を硝酸液中
で溶解するときに，溶解時間にバラツキが生じるという
問題があった。(Problems to be Solved by the Invention) In the fuel delivery device of the chain delivery end face loading type shown in FIGS. 3 to 6, the spent nuclear fuel (01) is mechanically loose due to its multi-joint structure. Chain (06)
Therefore, there was a problem that the delivery accuracy was poor and the spent nuclear fuel shearing device could not shear to a certain size, and when the sheared fragments were dissolved in the nitric acid solution, the dissolution time varied.
また前記第7,8図に示す側面装荷方式の燃料送り出し装
置では，使用済核燃料（01）を送りねじ軸（010）によ
り送り出すので，上記の問題点を生じないが，使用済核
燃料（01）を筒型マガジン（014）の側方から筒型マガ
ジン（014）内へ装荷するので，前記第３図乃至第６図
に示すチエーン送り端面装荷方式の燃料送り出し装置に
比べると，筒型マガジン（014）の開口部の面積が大き
くなり，筒型マガジン（014）内の気密保持性が低下し
て，汚染物質（使用済核燃料（01）を使用済核燃料剪断
装置で剪断する際に発生する燃料粉塵）が筒型マガジン
（014）外へ散逸するという問題があった。Further, in the side-loading type fuel delivery device shown in FIGS. 7 and 8, since the spent nuclear fuel (01) is delivered by the feed screw shaft (010), the above problems do not occur, but the spent nuclear fuel (01) Is loaded into the cylindrical magazine (014) from the side of the cylindrical magazine (014), so that the cylindrical magazine (014) is different from the fuel delivery device of the chain feed end face loading system shown in FIGS. The area of the opening of 014) becomes large, the airtightness in the cylindrical magazine (014) deteriorates, and the fuel generated when the pollutant (spent nuclear fuel (01) is sheared by the spent nuclear fuel shearing device There was a problem that dust) was scattered to the outside of the cylindrical magazine (014).
また使用済核燃料（01）は，種類毎に端部の形状が大き
く異なるので，異なる種類の使用済核燃料（01）を送り
出すとき，プツシヤ（05）または（013）を交換する必
要があるが，この交換作業が放射線から人体を保護する
ため，遠隔操作になる上に，交換作業そのものが煩雑
で，第３図乃至第６図の燃料送り出し装置でも，第7,8
図に示す燃料送り出し装置でも，プツシヤの交換能率が
悪いという問題があった。Also, since the shape of the end of the spent nuclear fuel (01) varies greatly depending on the type, when sending out different types of spent nuclear fuel (01), it is necessary to replace the pusher (05) or (013). Since this replacement work protects the human body from radiation, it becomes a remote operation, and the replacement work itself is complicated, and even with the fuel delivery device shown in Figs.
The fuel delivery device shown in the figure also had the problem of poor pusher exchange efficiency.
本考案は前記の問題点に鑑み提案するものであり，その
目的とする処は，送り出し精度を向上できる。汚染物質
の筒型マガジン外への散逸を防止できる。さらにプツシ
ヤの交換能率を向上できる使用済核燃料剪断装置への燃
料送り出し装置を提供しようとする点にある。The present invention is proposed in view of the above problems, and the object of the present invention is to improve the delivery accuracy. It is possible to prevent scattering of pollutants out of the cylindrical magazine. Another object of the present invention is to provide a fuel delivery device for a spent nuclear fuel shearing device which can improve the exchange efficiency of the pusher.
（課題を解決するための手段） 上記目的を達成するために，本考案の使用済核燃料剪断
装置への燃料送り出し装置は，使用済核燃料をその長手
方向に移動可能に支持する筒型マガジン内にナツトを有
する送りねじ軸を設け，上記筒型マガジンの底板の一部
を昇降可能な可動底板とし，上記ナツトに着脱自在に係
合して上記筒型マガジン内を移動するプツシヤを上記可
動底板により昇降可能に支持している。(Means for Solving the Problems) In order to achieve the above-mentioned object, a fuel delivery device to a spent nuclear fuel shearing device of the present invention is provided in a cylindrical magazine that movably supports the spent nuclear fuel in its longitudinal direction. A feed screw shaft having a nut is provided, and a part of the bottom plate of the cylindrical magazine is a movable bottom plate that can be moved up and down. A pusher that detachably engages with the nut and moves in the cylindrical magazine is provided by the movable bottom plate. It supports up and down.
（作用） 本考案の使用済核燃料剪断装置への燃料送り出し装置は
前記のように構成されており，可動底板及びプツシヤを
下降させて，使用済核燃料を筒型マガジン内へ挿入し，
次いで可動底板及びプツシヤを上昇させて，プツシヤを
使用済核燃料の直後に位置させる同時にプツシヤをナツ
トに係合し，次いで送りねじ軸を回転し，プツシヤを筒
型マガジン内に前進させて，使用済核燃料を一定寸法ず
つ使用済核燃料剪断装置へ送り出す。(Operation) The fuel delivery device to the spent nuclear fuel shearing device of the present invention is configured as described above, and the movable bottom plate and the pusher are lowered to insert the spent nuclear fuel into the cylindrical magazine,
Then, the movable bottom plate and pusher are raised to position the pusher immediately after the spent nuclear fuel. At the same time, the pusher is engaged with the nut, then the feed screw shaft is rotated, and the pusher is advanced into the cylindrical magazine to remove the spent The nuclear fuel is sent to the spent nuclear fuel shearing device by a certain size.
（実施例） 次に本考案の使用済核燃料剪断装置への燃料送り出し装
置を第1,2図に示す一実施例により説明すると，（１）
が筒型マガジン，（12）が同筒型マガジン（１）の底
板，（８）が同筒型マガジン（１）の可動底板，（8a）
が同可動底板（８）の下面に取付けたベアリング，（12
a）が同可動底板（８）の昇降をガイドする案内板，
（７）が同可動底板（８）を昇降させるための昇降駆動
装置，（13）は下限位置まで下降した可動底板（８）を
旋回させるためのターンテーブル，（２）が上記筒型マ
ガジン（１）内にその長手方向に沿って配設した送りね
じ軸，（11a）が同送りねじ軸（２）に螺合したナツ
ト，（11）が同ナツト（11a）を有すナツト箱，（６）
が同ナツト箱（11）の下面から下方に突設した突出部，
（４）がプツシヤ，（4a）がPWR型使用済核燃料を送り
出すときに使用する同プツシヤ（４）のアダプタ，（4
b）がBWR型使用済核燃料を送り出すときに使用する同プ
ツシヤ（４）のアダプタ，（10）が使用済核燃料，（1
4）が上記筒型マガジン（１）の装荷側開口部に設けた
ゲート，（15）が同ゲート（14）を開閉するためのエア
シリンダである。(Embodiment) Next, the fuel delivery device to the spent nuclear fuel shearing device of the present invention will be explained with reference to one embodiment shown in FIGS.
Is a cylindrical magazine, (12) is a bottom plate of the same cylindrical magazine (1), (8) is a movable bottom plate of the same cylindrical magazine (1), (8a)
A bearing mounted on the lower surface of the movable bottom plate (8), (12
a) is a guide plate that guides the vertical movement of the movable bottom plate (8),
(7) is a lifting drive device for moving the movable bottom plate (8) up and down, (13) is a turntable for rotating the movable bottom plate (8) lowered to the lower limit position, and (2) is the cylindrical magazine ( 1) A feed screw shaft arranged in the longitudinal direction of the feed screw shaft, (11a) a nut screwed to the feed screw shaft (2), (11) a nut box having the nut (11a), ( 6)
Is a protrusion protruding downward from the lower surface of the nut box (11),
(4) is a pusher, (4a) is an adapter of the pusher (4) used when sending out PWR type spent nuclear fuel, (4
b) Adapter for the pusher (4) used when sending out BWR type spent nuclear fuel, (10) is spent nuclear fuel, (1)
4) is a gate provided at the loading side opening of the cylindrical magazine (1), and (15) is an air cylinder for opening and closing the gate (14).
次に前記第1,2図に示す使用済核燃料剪断装置への燃料
送り出し装置の作用を具体的に説明する。昇降駆動装置
（７）を下降方向に作動して，可動底板（８）及びプツ
シヤ（４）を下降させ，ゲート（14）を開き，次いで矢
印（３）に示すように使用済核燃料（10）を筒型マガジ
ン（１）内へ挿入して，プツシヤ（４）よりも左方筒型
マガジン（１）内に位置させ，次いでゲート（14）を閉
じ，次いで昇降駆動装置（７）を上昇方向に作動し，可
動底板（８）及びプツシヤ（４）を上昇させて，プツシ
ヤ（４）を使用済核燃料（10）の直後に位置させる同時
にプツシヤ（４）の凹部（4c）をナツト箱（11）の突出
部（６）に係合し，次いで送りねじ軸（２）を回転駆動
装置により回転し，プツシヤ（４）を筒型マガジン
（１）内に前進させて，使用済核燃料（10）を一定寸法
ずつ使用済核燃料剪断装置へ送り出す。Next, the operation of the fuel delivery device for the spent nuclear fuel shearing device shown in FIGS. 1 and 2 will be specifically described. The elevator drive device (7) is operated in the lowering direction to lower the movable bottom plate (8) and pusher (4), open the gate (14), and then use the spent nuclear fuel (10) as shown by the arrow (3). Is inserted into the cylindrical magazine (1) and positioned in the cylindrical magazine (1) on the left side of the pusher (4), then the gate (14) is closed, and then the lifting drive device (7) is moved upward. And the movable bottom plate (8) and pusher (4) are raised to position the pusher (4) immediately after the spent nuclear fuel (10), and at the same time, the recess (4c) of the pusher (4) is inserted into the nut box (11). ), Then the feed screw shaft (2) is rotated by a rotary drive device to advance the pusher (4) into the cylindrical magazine (1), and spent nuclear fuel (10) Is sent to the spent nuclear fuel shearing device by a certain size.
また送り出される使用済核燃料（10）がPWR型使用済核
燃料であるか,BWR型使用済核燃料であるかにより，プツ
シヤ（４）の向きを変える。次にその要領を説明する。
昇降駆動装置（７）を下降方向に作動し，可動底板
（８）及びプツシヤ（４）を下降させて，可動底板
（８）をターンテーブル（13）に載架した後，可動底板
（８）及びプツシヤ（４）を180°回転させ，プツシヤ
（４）の向きを変えて，アダプタ（4a）（4b）の一方を
送り出し側（左側）に位置させ，次いで使用済核燃料
（10）が筒型マガジン（１）内に装荷されたときに，昇
降駆動装置（７）を上昇方向に作動し，可動底板（８）
及びプツシヤ（４）を上昇させて，アダプタ（4a）（4
b）の一方を使用済核燃料（10）の直後に位置させる。Further, the direction of the pusher (4) is changed depending on whether the spent nuclear fuel (10) sent out is a PWR type spent nuclear fuel or a BWR type spent nuclear fuel. Next, the procedure will be described.
The elevating and lowering drive device (7) is operated in the descending direction to lower the movable bottom plate (8) and the pusher (4), and after mounting the movable bottom plate (8) on the turntable (13), the movable bottom plate (8) Also, the pusher (4) is rotated 180 °, the direction of the pusher (4) is changed, and one of the adapters (4a) and (4b) is positioned on the delivery side (left side), and then the spent nuclear fuel (10) is tubular. When loaded in the magazine (1), the lifting drive device (7) is operated in the ascending direction to move the movable bottom plate (8).
And push up the pusher (4) to move the adapter (4a) (4
b) Position one immediately after the spent nuclear fuel (10).
（考案の効果） 本考案の使用済核燃料剪断装置への燃料送り出し装置は
前記のように可動底板及びプツシヤを下降させて，使用
済核燃料を筒型マガジン内へ挿入し，次いで可動底板及
びプツシヤを上昇させて，プツシヤを使用済核燃料の直
後に位置させる同時にプツシヤをナツトに係合し，次い
で送りねじ軸を回転し，プツシヤを筒型マガジン内に前
進させて，使用済核燃料を一定寸法ずつ使用済核燃料剪
断装置へ送り出すので，チエーンにより送り出す場合に
比べると，送り出し精度を向上できる。また使用済核燃
料の送り出し時，筒型マガジンの端部を閉じればよく
て，汚染物質の筒型マガジン外への散逸を防止できる。
また可動底板を昇降させるだけで，プツシヤをナツトに
着脱できるので，プツシヤの交換能率を向上できる効果
がある。(Effect of the device) The fuel delivery device to the spent nuclear fuel shearing device of the present invention lowers the movable bottom plate and the pusher as described above, inserts the spent nuclear fuel into the cylindrical magazine, and then inserts the movable bottom plate and the pusher. Raise the pusher to the position immediately after the spent nuclear fuel, engage the pusher with the nut at the same time, then rotate the feed screw shaft and advance the pusher into the cylindrical magazine to use the spent nuclear fuel at a fixed size. Since it is sent to the spent nuclear fuel shearing device, the sending accuracy can be improved compared to the case where it is sent by the chain. Also, when the spent nuclear fuel is sent out, it is sufficient to close the end of the cylindrical magazine, and it is possible to prevent contaminants from being scattered out of the cylindrical magazine.
In addition, the pusher can be attached to and detached from the nut simply by moving up and down the movable bottom plate, which has the effect of improving the efficiency of pusher replacement.
第１図は本考案に係わる使用済核燃料剪断装置への燃料
送り出し装置の一実施例を示す斜視図，第２図は可動底
板部を示す拡大側面図，第３図乃至第６図は従来のチエ
ーン送り端面装荷方式の燃料送り出し装置を示す説明
図，第7,8図は従来の側面装荷方式の燃料送り出し装置
を示す説明図である。 （１）……筒型マガジン，（２）……送りねじ軸，
（４）……プツシヤ，（８）……可動底板，（10）……
使用済核燃料，（11）……ナツト箱。FIG. 1 is a perspective view showing an embodiment of a fuel delivery device for a spent nuclear fuel shearing device according to the present invention, FIG. 2 is an enlarged side view showing a movable bottom plate portion, and FIGS. FIG. 7 is an explanatory diagram showing a chain delivery end face loading type fuel delivery device, and FIGS. 7 and 8 are explanatory diagrams showing a conventional side loading type fuel delivery device. (1) …… Cylindrical magazine, (2) …… Feed screw shaft,
(4) …… Pusher, (8) …… Movable bottom plate, (10) ……
Spent nuclear fuel, (11) ... nut box.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 田村 和雄 長崎県長崎市飽の浦町１番１号 三菱重工 業株式会社長崎造船所内 (56)参考文献 特開 昭47−12550（ＪＰ，Ａ) 特開 昭58−213299（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kazuo Tamura Inventor, 1-1 1-1 Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard (56) Reference JP-A-47-12550 (JP, A) 58-213299 (JP, A)
Claims (1)
支持する筒型マガジン内にナツトを有する送りねじ軸を
設け，上記筒型マガジンの底板の一部を昇降可能な可動
底板とし，上記ナツトに着脱自在に係合して上記筒型マ
ガジン内を移動するプツシヤを上記可動底板により昇降
可能に支持したことを特徴とする使用済核燃料剪断装置
への燃料送り出し装置。1. A feed screw shaft having a nut is provided in a cylindrical magazine that movably supports spent nuclear fuel in its longitudinal direction, and a part of the bottom plate of the cylindrical magazine is a movable bottom plate that can be raised and lowered. A device for delivering fuel to a spent nuclear fuel shearing device, wherein a pusher that is detachably engaged with a nut and moves in the cylindrical magazine is supported by the movable bottom plate so as to be able to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8051788U JPH0650799Y2 (en) | 1988-06-20 | 1988-06-20 | Fuel delivery device to spent nuclear fuel shearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8051788U JPH0650799Y2 (en) | 1988-06-20 | 1988-06-20 | Fuel delivery device to spent nuclear fuel shearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH022700U JPH022700U (en) | 1990-01-09 |
| JPH0650799Y2 true JPH0650799Y2 (en) | 1994-12-21 |
Family
ID=31305342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8051788U Expired - Lifetime JPH0650799Y2 (en) | 1988-06-20 | 1988-06-20 | Fuel delivery device to spent nuclear fuel shearing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650799Y2 (en) |
-
1988
- 1988-06-20 JP JP8051788U patent/JPH0650799Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH022700U (en) | 1990-01-09 |
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